Turbine installation.



C. A. PARSONS.

TURBINE INSTALLATION.

APPLICATION FILED 05c. 16. 1912.

1,207,070. Patented Dec. 5,1916.

H INVEN 0R MNSS s 0 MmfiTvEY (Vanda/ CHARLES ALGERNON PARSONS, FNEWCASTLE-UPON-TYN E, ENGLAND.

TURBINE INSTALLATION.

Specification of Letters Patent.

Application filed December 16, 1912. Serial No. 737,025.

To all whom it may concern Be it known that I, CHARLES ALGERNQN PARSONS,K. C. B., a subject of the King of Great Britain and Ireland, andresiding at Heaton Works, Newcastle-upon-Tyne, in the county ofNorthumberland, England, have invented certain new and usefulImprovements in and Relating to Turbine Installations, of which thefollowing is a specification.

This invention relates to turbine installations, its object being toprovide an improved form.

The invention consists in a turbine installation in which a condensersituated in immediate proximity to a turbine is provided with preheatingtubes so placed as to be impinged by the exhaust steam at high velocity.

The invention also consists in the improved turbine installationhereinafter described.

The accompanying drawing shows partly in section and partly in sideelevation a turbine and condenser attached thereto in accordance withthe present invention.

One method of carrying the invention into effect is described by way ofexample as applied to a turbine installation suitable for drivingelectric machinery, and having a high pressure and a low pressureturbine mounted upon the same line of shafting as van electricgenerator. The low pressure turbine, a which alone is illustrated in theaccompanying drawing, is situated between the high pressure turbine andthe generator, and is supported partly by the foundation 6 of the highpressure turbine and partly by the foundation 0 of the generator.

Steam exhausted from the high pressure turbine enters the turbine, at,through side inlets, one of which is shown at d, and after flowing inopposite directions through the turbine, is discharged through exhaustpassages, f and g, which unite in a single eduction pipe, h. The latteris formed integral with the turbine casing and conducts the exhauststeamto a condenser or to a pipe by which the condenser can be automaticallyby-passed in a known manner, and the exhaust steam delivered to a stilllower pressure turbine, hot well or the atmosphere, as

' desired. The eduction pipe, h, forming part of the turbine casing,projects downward between the foundations, b and 0, into aspace capableof accommodating a large main condenser, is.

The condenser, is, is bolted or otherwise rlgidly attached to thedownwardly projecting eduction pipe, h, and thus forms part of theturbine casing structure. In this way .there are avoided expansionjoints or other means adapted to allow of relative movement between theturbine, a, and the condenser, is, as are necessary in arrangements inwhich the condenser is situated below the turbine delivering the exhauststeam, but is fixed to a foundation.

In the above arrangement, the expansion due to heat is accommodated bythe natural spring in the water and air pipes to and from the condenser,such pipes being provided with expansible joints in most cases, so thatthe total weight of the condenser is taken by the turbine casing towhich the former is rigidly attached.

The condenser may be directly attached to any turbine other than thelowest pressure turbine'of an installation while more than one suchcondenser, each attached to a turbine, may be provided, arrangementsbeing made, if desired, for short-circuiting or bypassing one or moresuch condensers and allowing the exhaust steam or other working fluid topass to a lower pressure turbine, hot well or to the atmosphere.

A suitable condenser is that illustrated in which the entering exhauststeam impinges upon two nests of condenser tubes, one of which is shownin section at Z and thereafter upon two further nests or tubes,

Patented Dec. 5, 1916. I

nests of tubes, m and then upward and,

through the upper nests of tubes, Z, to the outlet, 9, which is arrangedat the same end of the condenser as the inlet, 0.

If desired the'degree ofvacuum proter ispreferably passed through anumber of tubes situated at the inlet to the condenser and impinged uponby the exhaust steam from the turbine to which such condenser' isattached. As the exhaust steam has a considerable velocity, heat isreadily transmitted therefrom to the feed Water, and an increasedeconomy thereby obtained.

According to the arrangement illustrated, the feed water is admitted byan inlet, 7*, to a conduit, 8, between which and a similar conduitsituated at the other side of the turbine the tubes, u, for pre-heatingthe feed water are arranged, preferably parallel with the tubes in thecondenser, is. The conduit, 8, is by means of suitable partitions,divided into three sections, indicated by numerals l, 2 and 3, while thesecond conduit is divided into two sections. The feed water, on beingadmitted to section 1 of the first conduit passes by way of. the

, tubes, to, to the first section of the second conduit from which itpasses through more tubes, as, to section 2 of conduit, 8, then throughthe tubes, u, to the second section of the second conduit, and finallyto section 3 of conduit 8, from which .it is withdrawn through theoutlet, 12. The boiler feed Water may of course be passed across theinlet of the condenser, is, asoften as is desired, and the feed Watercirculated in any desired manner by means of tubes or the like situatedat the inlet of any suitable type of condenser independent of how thelatter is attached or situated relativelyv to the turbine delivering theexhaust steam.

Having now described my invention,what I claim as new and desire tosecure by Letters Patent is 1. An elastic fluid operated plantcomprising in combination a low pressure turbine, supporting meansseparated by a space which is bridged by the casing of said turbine, acondenser receiving the working fluid discharged from the turbine, saidcondenser being situated in the space below the turbine, means bywhichthe condenser is suspended from the turbine casing, and preheating meanspartly within said turbine casing adapted to be impinged upon by theWorking fluid passing from the turbine to the condenser.

2. An elastic fluid operated plant comprising in combination a lowpressure turbine, supporting means separated by a space i which isbridged by the casing of said turbine, an outlet to said casing, acondenser, an inlet to said condenser receiving the working fluiddischarged from-the turbine, said condenser being situated in the spacebelow the turbine, means by which the condenser is suspended from theturbine casing, the outlet of said casing being in close proximity tosaid condenser inlet, and a system of tubes arranged across the inlet tothe condensensaid tubes conveying fluid which is preheated on account ofthe tubes being impinged upon by the working fluid entering thecondenser.

3. In a turbine installation in combination, a turbine casing, acondenser rigidly attached to and forming part. of said casing structureand feed preheating means situated at the junction of said casing andsaid condenser.

4. In a turbine installation in combina' tion, a turbine casing, acondenser rigidly bine and convert the kinetic energy of the exhaustfluid into heat, and conduct it to the feed, said preheating ineansbeing situated partly within said eduction means and c'omprising twoconduits, inlet and outlet means to said conduits, and tubes passingfrom one of said conduits to the other of said conduits and acrosssubstantially the whole area of said eduction means.

6. In a turbine installation in combination, a turbine casing,aneduction opening in said casing, a condenser rigidly attached byhorizontal joint to the walls of said opening to form part of saidcasing structure, two horizontal conduits situated partly within saidcasing and partly within said condenser, said conduits extending alongop-1 posite sides of said opening, an inlet to one of said conduits, andan outlet to the other of said conduits, horizontal tubes connect-- ingsaid conduits, said tubes extending over substantially the wholeof saidopening.

Y 7 In a turbine installation a turbine casing, a condenser, an outletto said turbine between said casing and said condenser and partly withinsaid casing.

Dated this 4th day of December, 1912.

In testimony whereof, I aflix my signature in presence of two witnesses.

amines ALGERNON mesons.

Witnesses:

ALBERT WILLIAM PARR, J FREDERICK GORDON HAY BEDFORD.

